If youspecify that cheatcode when you boot fromt he CD BEFORE instalation, the setting should become permanent when you install. At least all my cheatcodes did. Also, you could just adjust that through the kde control panel.

As for not being able to mount the fat32 partition, I don't know. You should be able to. The one problem I had was that several of my partitions were comented out in the fstab, so I had to un-commnet them to make it all work. You might check that, beyond that, I don't know.